katie has a coin collection she keeps 7 of the coing in the box which is only 14% of her entire collection. what is the total number of coins in katie’s collection

Which expression is equivalent to 2x^2+7x+4?

In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93